基于Matlab车载无刷直流电机模糊PID控制系统仿真研究

Simulation and Researchon on Fuzzy-PID Control System of On-board Brushless DC Motor Based on Matlab

鉴于电动车运行工况的复杂性,电机参数随之发生变化,严重影响着电机的控制性能,针对这种干扰多变的因素对电机转速和转矩造成的影响,分析采用一种转速模糊PID和电流跟踪滞环双闭环控制策略,提升车载系统的鲁棒性。在Matlab/Simulink环境下,结合S-Function函数构建了其仿真模型,仿真结果表明系统具有较好的控制性能,符合电动车驱动控制系统设计要求。

Electric vehicle operating conditions are complex, the motor model parameters will be changed, which seriously affect the performance of the motor control. Speed and torque of the motor is affected, and an improved control strategy which is based on the speed of fuzzy PID and current tracking hysteresis loop double closed-loop was proposed to reduce it, It can improve the robustness of the control system. Based on the S-Function , the simulation model of the brushless direct current motor double closed loop system was constructed, and the simulation in Matlab/Simulink environment is simulated, which has better control effect, and meets the design requirements of electric vehicle driving control system.